| | | 1 | | using System.Globalization; |
| | | 2 | | using System.Text.Json; |
| | | 3 | | using System.Text.Json.Serialization; |
| | | 4 | | |
| | | 5 | | namespace RaidLoop.Core.Contracts; |
| | | 6 | | |
| | | 7 | | public sealed class FlexibleDateTimeOffsetJsonConverter : JsonConverter<DateTimeOffset> |
| | | 8 | | { |
| | 1 | 9 | | internal static readonly string[] LegacyUtcFormats = |
| | 1 | 10 | | [ |
| | 1 | 11 | | "yyyy-MM-dd HH:mm:ss.FFFFFF", |
| | 1 | 12 | | "yyyy-MM-dd HH:mm:ss.FFFFFFF", |
| | 1 | 13 | | "yyyy-MM-dd HH:mm:ss" |
| | 1 | 14 | | ]; |
| | | 15 | | |
| | | 16 | | public override DateTimeOffset Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) |
| | | 17 | | { |
| | 9 | 18 | | if (reader.TokenType != JsonTokenType.String) |
| | | 19 | | { |
| | 0 | 20 | | throw new JsonException($"Expected string token when parsing {nameof(DateTimeOffset)}."); |
| | | 21 | | } |
| | | 22 | | |
| | 9 | 23 | | var value = reader.GetString(); |
| | 9 | 24 | | if (string.IsNullOrWhiteSpace(value)) |
| | | 25 | | { |
| | 0 | 26 | | throw new JsonException("Timestamp string was null or empty."); |
| | | 27 | | } |
| | | 28 | | |
| | 9 | 29 | | if (TryParseFlexible(value, out var parsed)) |
| | | 30 | | { |
| | 9 | 31 | | return parsed; |
| | | 32 | | } |
| | | 33 | | |
| | 0 | 34 | | throw new JsonException($"Unable to parse DateTimeOffset value '{value}'."); |
| | | 35 | | } |
| | | 36 | | |
| | | 37 | | public override void Write(Utf8JsonWriter writer, DateTimeOffset value, JsonSerializerOptions options) |
| | | 38 | | { |
| | 5 | 39 | | writer.WriteStringValue(value.ToUniversalTime().ToString("O", CultureInfo.InvariantCulture)); |
| | 5 | 40 | | } |
| | | 41 | | |
| | | 42 | | internal static bool TryParseFlexible(string value, out DateTimeOffset parsed) |
| | | 43 | | { |
| | 10 | 44 | | if (DateTimeOffset.TryParseExact( |
| | 10 | 45 | | value, |
| | 10 | 46 | | LegacyUtcFormats, |
| | 10 | 47 | | CultureInfo.InvariantCulture, |
| | 10 | 48 | | DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, |
| | 10 | 49 | | out parsed)) |
| | | 50 | | { |
| | 1 | 51 | | return true; |
| | | 52 | | } |
| | | 53 | | |
| | 9 | 54 | | return DateTimeOffset.TryParse(value, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind, out parsed); |
| | | 55 | | } |
| | | 56 | | } |
| | | 57 | | |
| | | 58 | | public sealed class FlexibleNullableDateTimeOffsetJsonConverter : JsonConverter<DateTimeOffset?> |
| | | 59 | | { |
| | | 60 | | public override DateTimeOffset? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) |
| | | 61 | | { |
| | | 62 | | if (reader.TokenType == JsonTokenType.Null) |
| | | 63 | | { |
| | | 64 | | return null; |
| | | 65 | | } |
| | | 66 | | |
| | | 67 | | if (reader.TokenType != JsonTokenType.String) |
| | | 68 | | { |
| | | 69 | | throw new JsonException($"Expected string token when parsing {nameof(DateTimeOffset)}."); |
| | | 70 | | } |
| | | 71 | | |
| | | 72 | | var value = reader.GetString(); |
| | | 73 | | if (string.IsNullOrWhiteSpace(value)) |
| | | 74 | | { |
| | | 75 | | return null; |
| | | 76 | | } |
| | | 77 | | |
| | | 78 | | if (FlexibleDateTimeOffsetJsonConverter.TryParseFlexible(value, out var parsed)) |
| | | 79 | | { |
| | | 80 | | return parsed; |
| | | 81 | | } |
| | | 82 | | |
| | | 83 | | throw new JsonException($"Unable to parse DateTimeOffset value '{value}'."); |
| | | 84 | | } |
| | | 85 | | |
| | | 86 | | public override void Write(Utf8JsonWriter writer, DateTimeOffset? value, JsonSerializerOptions options) |
| | | 87 | | { |
| | | 88 | | if (value is null) |
| | | 89 | | { |
| | | 90 | | writer.WriteNullValue(); |
| | | 91 | | return; |
| | | 92 | | } |
| | | 93 | | |
| | | 94 | | writer.WriteStringValue(value.Value.ToUniversalTime().ToString("O", CultureInfo.InvariantCulture)); |
| | | 95 | | } |
| | | 96 | | } |